Rotation of an air-blowing motor is continued also upon completion of charge; by retrieving a presumed temperature for cooling and upon detecting that a measured temperature is higher than the presumed temperature for cooling by not less than a specified value, a LED lamp is switched ON for indicating that clogging of an airflow path of a battery package has occurred, and an abnormal condition is written to an EEPROM of the battery package.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A battery charging device provided with a cooling means for continuing cooling of batteries also upon completion of charge, comprising: a judging portion for judging whether a battery temperature at the time of completion of charge is higher than a presumed temperature for cooling the batteries by not less than a specified value, and an abnormality indicating portion for indicating an abnormal condition in case it is judged by the judging portion that the temperature is higher by the specified value.
2. A battery charging device provided with an air-blowing motor for continuing supply of air to batteries provided with an airflow path also upon completion of charge, comprising: a judging portion for judging whether a battery temperature at the time of completion of charge is higher than a presumed temperature for cooling the batteries by not less than a specified value, and an abnormality indicating portion for indicating an abnormal condition in case it is judged by the judging portion that the temperature is higher by the specified value and in case the air-blowing motor is continuing its operations.
3. The battery charging device as claimed in claim 2 , wherein the abnormality indicating portion further indicates an abnormal condition when the air-blowing motor cannot be rotated.
4. A battery charging device provided with an air-blowing motor for continuing supply of air to batteries incorporating therein a memory means and being provided with an airflow path also upon completion of charge, comprising: a charge current controlling portion for judging whether an abnormal condition is stored in the memory means incorporated in the batteries, and for performing charge at ordinary current in case no abnormal condition is stored, and for performing charge by decreasing the charge current in case an abnormal condition is stored, a judging portion for judging whether a battery temperature at the time of completion of charge is higher than a presumed temperature for cooling the batteries by not less than a specified value, and a memory portion for storing an abnormal condition to the memory means incorporated in the batteries in case it is judged by the judging portion that the temperature is higher by not less than the specified value.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
November 9, 2000
April 16, 2002
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